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Japan has 34 Patriot Advanced Capability-3 missile defense systems deployed throughout the country.
International relations

North Korean threat highlights gaps in Japan's missile shield

Coverage-expanding upgrades underway, but still years from completion

TOKYO -- North Korea's launch Tuesday of a ballistic missile over Japan has added new urgency to Tokyo's rush to upgrade a missile defense network that may not be up to dealing with Pyongyang's advancing technology.

Japan has two tiers of missile defenses: Patriot Advanced Capability-3 surface-to-air missiles and ship-based Aegis systems equipped with Standard Missile-3 interceptors.

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